#! /bin/bash

DATABASE=${DATABASE:-/tmp/docker-mailserver/postfix-virtual.cf}

EMAIL="$1"
RECIPIENT="$2"

usage() {
	echo "Usage: delalias <alias@domain> <recipient@other>"
}

errex() {
	echo "$@" 1>&2
	exit 1
}

escape() {
	echo "${1//./\\.}"
}

[ -z "$EMAIL" ] && { usage; errex "Error: No alias specified"; }
[ -z "$RECIPIENT" ] && { usage; errex "Error: No recipient specified"; }

[ -s "$DATABASE" ] || exit 0

#CNT=$(grep "^$EMAIL" $DATABASE | wc -w | awk '{print $1}')
sed -i -e "/^$EMAIL *$RECIPIENT$/d" \
       -e "/^$EMAIL/s/,$RECIPIENT//g" \
       -e "/^$EMAIL/s/$RECIPIENT,//g" $DATABASE